公开(公告)号：US6001096A

公开(公告)日：1999-12-14

申请号：US3564

申请日：1998-01-06

申请人： Gunter Bissinger ,  Bernhard Hug ,  Clemens Scholz ,  Andrea Scarfi

发明人： Gunter Bissinger ,  Bernhard Hug ,  Clemens Scholz ,  Andrea Scarfi

IPC分类号： A61B18/14 ,  A61B17/39

CPC分类号： A61B18/1442 ,  A61B2018/126 ,  A61B2018/1861

摘要： The invention is related to an instrument for endoscopic surgery. The instrument comprises a casing 10, further comprises a sliding tube 16 which extends into the casing with its proximal end 20 and which is disposed longitudinally slidable with respect to the casing by means of an actuating mechanism 38, further comprises an electrode tube 18 which extends through the sliding tube 16, which extends into the casing with its proximal end and is axially lockable therein, and further comprises two isolated wire pieces 32 which extend through the inside of the electrode tube 18. The wire pieces 32 which are adapted to be subjected to a high frequency current comprise branches 30 which protrude over the electrode tube 18 and the sliding tube 16 at their distal end, which are spread apart from one another slanted in opposite directions, which are elastically bendable with respect to each other in a radial direction against a spring force acting in the direction of spreading during a movement of the sliding tube 16, and which carry isolated bending sections 48 and, at their free ends, metallic electrodes 56. In order to be able to mechanically cut as well as coagulate, in a bipolar manner, biological tissue with the instrument, it is proposed according to the invention that the electrodes 56 are formed to be cutting blades having cutting edges 54, which are adapted to be moved with respect to each other in a scissor-like fashion under the action of the sliding tube 16 on the bending sections 48.

摘要翻译： 本发明涉及用于内窥镜手术的仪器。 仪器包括壳体10，其还包括滑动管16，滑动管16通过其近端20延伸到壳体中，并且通过致动机构38可相对于壳体纵向滑动地设置，还包括电极管18，其延伸 通过滑动管16，该滑动管16以其近端延伸到壳体中并且在其中可轴向锁定，并且还包括延伸穿过电极管18的内部的两个隔离的线片32.适于经受的线材32 高频电流包括在电极管18和滑动管16的远端突出的分支30，它们彼此沿相反方向相互分开地彼此分开，这两个方向可相对于彼此在径向上弹性弯曲 抵抗在滑动管16的移动期间沿扩展方向作用的弹簧力，并且其承载隔离的弯曲部分 并且在其自由端处具有金属电极56.为了能够以双极方式机械切割以及用仪器凝结生物组织，根据本发明提出电极56形成为 是具有切削刃54的切割刀片，其切割刃54适于在滑动管16在弯曲部分48上的作用下以剪刀状方式相对于彼此移动。